Is it bad to not eat?

In this brief guide, we will answer the query, “Is it bad to not eat?”. We will also talk about why you should eat and the side effects of skipping eating food

Is it bad to not eat?

Yes, it is bad to not eat at regular intervals or when you are hungry as it can cause many health and metabolic distress. Food is a source of energy that the body needs to function properly without any risk of health disorders.

Food is also a source of many vital nutrients and minerals that are needed for the body to run its systems smoothly. Lack of food to burn to generate energy can make the body resort to other sources of energy such as the lean muscles and then the tissues which can be detrimental to the internal organs and muscles.

Ingesting food full of healthy nutritions and minerals helps in the proper functioning of the bodily systems which aids in a healthy life. If there is no food intake, then the blood sugar levels will start to decrease which is vital for the brain to function as the blood sugar fuels the brain for proper thinking and decision making.

If there are low blood sugars, your ability to think and make decisions will be diminished. The body will have no energy to work or move as there is not much fuel to generate energy. The person feels lethargic, fatigued, and dizzy due to the lack of energy to support the metabolism and functioning of the bodily organs and systems.

What are the side effects of not eating?

There are various side effects of not eating which involve nutrient deficiency leading to various health disorders to effects on the metabolic functions of the body systems.

Nutrient deficiency

Nutrient deficiency can cause many health ailments because, for the proper functioning of the body, you would need a good intake of nutrient rich foods. Nutrients such as sodium, iron, calcium, Vitamin D, Vitamin C, zinc, folate, B vitamins, carbohydrates, protein, and fats are necessary for the proper functioning of the system.

Proteins are the building blocks of the tissues and cells whose inadequate intake will cause a deficiency of protein causing a poor immune system which will result in many health diseases such as edema, acne, weakness, lethargy, fatty liver, hair loss, skin degeneration and increase in severity of infections.

Sodium is a mineral that can be supplemented through food but if there is no intake of food then there will be a sodium deficiency. Sodium acts as a natural electrolyte that helps in regulating body fluids for muscle functions. The lack of sodium in the system can cause headaches, nausea, cramps, seizures, and coma.

Iron is also a vital mineral that should be supplemented through food. Its deficiency can cause the body to not produce and regulate red blood cells resulting in anemia which can cause hair loss, fatigue, and dizziness.

Carbohydrates are the main source of energy that would keep the body and the systems running effectively. No food intake leads to reduced carbohydrates in the body which can cause the body’s metabolism to decrease causing lethargy and fatigue.

Vitamin B complex and Vitamin C along with Vitamin D and Vitamin E are all essential nutrients whose deficiency can cause a range of health disorders such as lack of Vitamin C can cause scurvy, low Vitamin D can cause the bones to be weak and fragile, lack of Vitamin B12 can cause anemia and neurologic deterioration.


The body’s metabolism depends on the number of carbohydrates intake as carbs are the main fuel for energy to effectively process bodily functions. Lack of food can lead the body and brain to not function to their full strength as there is not much energy to fuel the system.

The metabolism decreases and the feeling of lethargy, fatigue, and dizziness are imminent as the sugar levels decrease which fuels the brain function too. The glucose found in high-carb foods is the main fuel for brain functions.

What are the causes that make you not want to eat? 

There can be many reasons that can cause a person’s appetite to diminish, among which depression and anorexia can be the major cause if you do not want to eat at all. 

Depression, stress and anxiety can make a person not want to eat as they are too frustrated with life and eating is not one of the things they would want to waste their time on.

Anorexia is a disorder where a person does not want to eat because they are scared of gaining weight and would limit their food intake to a bare minimum.


In this brief guide, we answered the query, “Is it bad to not eat?”. We also talked about why you should eat and the side effects of skipping eating food.

I hope you find this blog useful. If you have any questions, please let us know.


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